Omodaka-Kameno-Imai Laboratory (Observational Astronomy)

Kagiyama-Nakamura Laboratory (Particle Cosmology)

Nishio Laboratory (Satellite Meteorology)

Tateno Laboratory (Physiology) Nedachi Laboratory (Archaeology)

Space Science cource, Department of Physics, Faculty of Science, Kagoshima University

Astrometry of the Milky Way Galaxy

3-D structure and Dynamics

Annual parallaxes of stellar/interletellar masers

Period-luminosity relation of AGB (Asymptotic Giant Branch) stars

Evolution and Lifecycles of stars Mass-accretion and outflows of protostars

Mass-loss from evolved stars

High-energy Astrophysics Accretion disks in dwarf novae

AGN (Active Galactic Nuclei)

Research Fields in the Omodaka-Kameno-Imai Lab.

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Why 3-D mapping and Dynamics? The world’s first atlas of our galaxy

Distribution of stars, gas, and dark matter

How to measure distances to stars?

Annual parallax … triangulation with earth’s orbit as a baseline

Challenging 10-μarcsec precision … to measure whole the milky way

Maser sources as trig points … observations using VERA

AGB variable stars as standard candles … observations using 1-m telescope

Astrometry with the VERA and 1-m telescopes− 3-D map of the Milky Way −

Annual parallax of the maser source S Crt at 350 pc(Tsushima 2007)

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Kirk Woellert/National Science Foundation

Protostars Mass accretion process … How stars weigh?

• Molecular clouds : building block of stars

• Accreting and rotating disks

Outflows … Disposer of angular momenta

Evolved stars Pulsation and mass-loss processes at the end of star

life

Acceleration and collimation in AGB stars and pre-planetary nebulae

Recycle of synthesized elements into interstellar space

Evolution and Lifecycles of Stars

EvolveWater fountain of the evolved star W43A(Imai et al. 2002)

Microjet in the protostar S106 FIR(Furuya et al. 1999)

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Dwarf Novae Mass accretion in close-binary systems

• Mass supply form a companion star

• Accretion disk around a white dwarf

Variability … Outbursts, Superoutbursts, and Superhumps

• Lightcurve measurements to probe disk instability

Active Galactic Nuclei Mass accretion onto supermassive black hole in

the center of galaxies

The most powerful engines in the univers, up to 1041 W

Relativistic jets : v~99% of the speed of light

High-Energy Astrophysics

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Jets of the active galaxy NGC 1052(Kameno et al. 2003)

Light curve of the dwarf nova V844 Her(Oizumi et al. 2007)

1-m Optical / IR telescope (Iriki Observatory)

VERA 20m radio telescope (Iriki Observatory)

6-m radio telescope (Kinkowan Park Observatory)

VSOP-2 : Space VLBI project(to be launched in 2012)

Astronomy Telescopesoperated by us

Very-Long-Baseline Interferometry

1-m Opt/IR Telescope

6-m Radio Telescope

VERA 20-m Radio Telescope

ASTRO-G Satellite for VSOP-2(artist’s impression)

Staffs (4) Professor/Executive : OMODAKA, Toshihiro

Associate Professor : KAMENO, Seiji

Assistant Professor : IMAI, Hiroshi

Research Fellow : NAKAGAWA, Akiharu

Students (26) Graduated (PhD) : 1

Graduated (Master) : 14

Undergraduate : 11

Membership

http://astro.sci.kagoshima-u.ac/ Mail: omodaka@sci.kagoshima-u.ac.jp

kameno@sci.kagoshima-u.ac.jp Phone/FAX : 099-285-8960 Address : Omodaka-Kameno-Imai Lab.

Department of Physics, Faculty of ScienceKagoshima University1-21-35 Korimoto, Kagoshima, 890-0065JAPAN

Correspondence